Hello and welcome to the source of all digital joy. It is, of course, Unknown Pleasures, where you can find some good games you may not have heard about. Screeching a colourful stream of profanity this week: memory divers, demonic invasions, and solving a murder by killing hundreds of other people. Oh, games.

Some say that the arms race for graphical fidelity is only good for chasing photo-realism. Mirror Drop by former ThatGameCompany developer Ian Lilley is a stunning showcase of the kinds of borderline-mystical tricks a modern GPU can pull, all while delivering a mesmerising and engaging little puzzle game. You've just got to roll a ball from A to B by shifting gravity, simple enough, but…